org.gvsig.app.join.dal.feature

Class JoinTransform

java.lang.Object

org.gvsig.fmap.dal.feature.AbstractFeatureStoreTransform

org.gvsig.app.join.dal.feature.JoinTransform

All Implemented Interfaces:

Cloneable, FeatureStoreTransform, Persistent

public class JoinTransform
extends AbstractFeatureStoreTransform

Field Summary

Fields

Modifier and Type	Field and Description
static String	PERSISTENCE_DEFINITION_NAME

Fields inherited from class org.gvsig.fmap.dal.feature.AbstractFeatureStoreTransform

ABSTRACT_FEATURESTORE_DYNCLASS_NAME, descripcion, METADATA_DEFINITION_NAME, name

Constructor Summary

Constructors

Constructor and Description
JoinTransform() A default constructor

Method Summary

Methods

Modifier and Type	Method and Description
void	applyTransform(Feature source, EditableFeature target) Applies this transform between two features, copying the source data to the target feature.
FeatureType	getSourceFeatureTypeFrom(FeatureType arg0) Returns the original store FeatureType that replaces targetFeatureType of this FeatureStoreTransform's
void	initialize(FeatureStore store1, FeatureStore store2, String keyAttr1, String keyAttr2, String prefix1, String prefix2, String[] attrs) Initializes all the necessary data for this transform
boolean	isTransformsOriginalValues() Retruns true if this make changes of any attributes values or false if only FeatureType definitions is changed.
void	loadFromState(PersistentState state) Set the state of the object from the state passed as parameter.
static void	registerPersistent()
void	saveToState(PersistentState state) Saves the internal state of the object on the provided PersistentState object.

Methods inherited from class org.gvsig.fmap.dal.feature.AbstractFeatureStoreTransform

clone, getDefaultFeatureType, getDescription, getDynValue, getFeatureStore, getFeatureTypes, getName, getSourceMetadata, hasDynValue, setDynValue, setFeatureStore, setFeatureTypes, setSourceMetadata

Methods inherited from class java.lang.Object

equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

PERSISTENCE_DEFINITION_NAME

public static final String PERSISTENCE_DEFINITION_NAME

See Also:

Constant Field Values

Constructor Detail

JoinTransform

public JoinTransform()

A default constructor

Method Detail

initialize

public void initialize(FeatureStore store1,
              FeatureStore store2,
              String keyAttr1,
              String keyAttr2,
              String prefix1,
              String prefix2,
              String[] attrs)
                throws DataException

Initializes all the necessary data for this transform

Parameters:

store1 - store whose default feature type is the target of this transform

store2 - store whose default feature type will provide the new attributes to join

keyAttr1 - key attribute in store1 that matches keyAttr2 in store2 (foreign key), used for joining both stores.

keyAttr2 - key attribute in store2 that matches keyAttr1 in store2 (foreign key), used for joining both stores.

attrs - names of the attributes in store2 that will be joined to store1.

Throws:

DataException

applyTransform

public void applyTransform(Feature source,
                  EditableFeature target)
                    throws DataException

Description copied from interface: FeatureStoreTransform

Applies this transform between two features, copying the source data to the target feature.

Parameters:

source -

target -

Throws:

DataException

getSourceFeatureTypeFrom

public FeatureType getSourceFeatureTypeFrom(FeatureType arg0)

Description copied from interface: FeatureStoreTransform

Returns the original store FeatureType that replaces targetFeatureType of this FeatureStoreTransform's

Returns:

source FeatureType

isTransformsOriginalValues

public boolean isTransformsOriginalValues()

Description copied from interface: FeatureStoreTransform

Retruns true if this make changes of any attributes values or false if only FeatureType definitions is changed.

Returns:

See Also:

FeatureStoreTransforms#isTransformsOriginalValues()}

registerPersistent

public static void registerPersistent()

saveToState

public void saveToState(PersistentState state)
                 throws PersistenceException

Description copied from interface: Persistent

Saves the internal state of the object on the provided PersistentState object.

Specified by:

saveToState in interface Persistent

Overrides:

saveToState in class AbstractFeatureStoreTransform

Throws:

PersistenceException

loadFromState

public void loadFromState(PersistentState state)
                   throws PersistenceException

Description copied from interface: Persistent

Set the state of the object from the state passed as parameter.

Specified by:

loadFromState in interface Persistent

Overrides:

loadFromState in class AbstractFeatureStoreTransform

Throws:

PersistenceException